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Abstract In recent years, lean-burn gasoline Spark-Ignition (SI) engines have been a major subject of investigations. With this solution, in fact, it is possible to simultaneously reduce NOx raw emissions and fuel consumption due to decreased heat losses, higher thermodynamic efficiency, and enhanced knock resistance. However, the real applicability of this technique is strongly limited by the increase in cyclic variation and the occurrence of misfire, which are typical for the combustion of homogeneous lean air/fuel mixtures. The employment of a Pre-Chamber (PC), in which the combustion begins before proceeding in the main combustion chamber, has already shown the capability of significantly extending the lean-burn limit. In this work, the potential of an ultralean PC SI engine for a decisive improvement of the thermal efficiency is presented by means of numerical and experimental analyses.

Abstract List of Reviewers

Abstract List of Reviewers

Abstract The SAE International Journal of Fuels and Lubricants would like to thank and acknowledge the reviewers who have done peer reviews on articles over the last 2 years:

Abstract List of Reviewers

Abstract The SAE International Journal of Connected and Automated Vehicles would like to thank and acknowledge the reviewers who have done peer reviews on articles over the last 2 years:

The SAE International Journal of Electrified Vehicles would like to thank and acknowledge the reviewers who have done peer reviews on articles over the last 2 years:

The SAE International Journal of Sustainable Transportation, Energy, Environment, & Policy would like to thank and acknowledge the reviewers who have done peer reviews on articles over the last 2 years:

2020-2021 Reviewers

Abstract 2020-2021 Reviewers

Reviewer Acknowledgment

2020-2021 Reviewers

Abstract 2020-2021 Reviewers

Abstract 2020-2021 Reviewers

Abstract 2020-2021 Reviewers

Abstract 2020-2021 Reviewers

Abstract 2020-2021 Reviewers

Abstract 2020-2021 Reviewers

2020-2021 Reviewers

Abstract This work puts presents an all-inclusive state of the art bibliographical review of all categories of electrified transportation (xEVs) standards, issued by the most important standardization organizations. Firstly, the current status for the standards by major organizations is presented followed by the graphical representation of the number of standards issued. The review then takes into consideration the interpretation of the xEVs standards developed by all the major standardization organizations across the globe. The standards are differentiated categorically to deliver a coherent view of the current status followed by the explanation of the core of these standards. The ISO, IEC, SAE, IEEE, UL, ESO, NTCAS, JARI, JIS and ARAI electrified transportation vehicles xEV Standards from USA, Europe, Japan, China and India were evaluated. A total approximated of 283 standards in the area have been issued.